42 - 7
Drive Head Limited Slip Differential -
Assembly (cont’d)
25 Drive bearing cones 7 onto spigots, lightly oil the
bearings then fit bearing cups 6 and castellated nuts 5.
Do not fit the roll pins 4 at this stage.
26 Adjust castellated nut 5 on crownwheel side until
backlash is 0.17 mm - 0.28 mm (0.006 in - 0.010 in).
27 Adjust castellated nut 5A until there is no end-float and
no pre-load, ensuring that bearings are bedded in by
rotating in each direction. Tighten nut 5A by a further 4
castellations to set pre-load, ensuring that correct
backlash is maintained. Fit roll pins 4.
28 Check tooth marking to verify crown and pinion are set
correctly, refer to Crownwheel and Pinion Meshing.
29 Apply JCB Multigasket to the mating faces of the drive
head carrier 2 and the axle casing. Fit securing bolts 1
and tighten to 98 Nm (72 lbf ft, 10 kgf m).
30 Reassemble both driveshafts and hub assemblies, refer
to Axle Hub and Driveshaft - Dismantling and
Assembly.
31 Re-fill hubs and differential with the correct grade of oil,
refer to Section 3 Lubricants and Capacities.
32 Refit the propshaft, refer to Propshafts - Removing
and Replacing.
Friction Plate Wear Limits
Measure and note the thickness of the friction plate, the
result must not be less than 1.25 mm (0.049 in).
Check the condition of the friction material, which should be
even over both surfaces.
If in doubt, discard the set (friction and counter plates).
Section F Transmission
9803/7130
Section F
42 - 7
Issue 1
Front Axle
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